Forces

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is magnetism?

Back

Magnetism is an invisible force or field caused by the unique properties of certain materials that can attract or repel metals.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, such as the Earth pulling objects towards its center.

Front

What happens when two forces act in opposite directions?

Back

When two forces act in opposite directions, they can cancel each other out or result in a net force that determines the direction of motion.

Front

What is the role of gravity in the solar system?

Back

Gravity keeps planets in orbit around the Sun by pulling them towards it.

Front

How can we measure force?

Back

Force can be measured using a spring scale, which shows the amount of force applied to an object.

Front

What is a contact force?

Back

A contact force is a force that requires physical contact between two objects, such as friction or tension.

Front

What is a non-contact force?

Back

A non-contact force is a force that acts at a distance, such as gravity or magnetism.